[Discuss-gnuradio] tunnel.py distance problem

[Marko Simunac]

Hi,
I am using tunnel.py to transfer text files between two USRPs. It only works 
when the two USRPs are almost right next to each other, max distance is 5 
inches, after that the ping fails and tunnel stops working. I am using the Flex 
400 daughterboards and am assigning a carrier treshold of 90(-c 90) to get rid 
the BBBBBBs. Can someone help me to increase the distance between the two 
USRPs, and theoretically what is the max distance between the two USRPs that 
tunnel can work? 
Thanks,
Marko